class Improvement < ActiveRecord::Base
  has_many    :estate_imrpvoements
  validates_presence_of     :name
  validates_numericality_of :price
  validates_numericality_of :income_gold
  validates_numericality_of :income_prestige
  validates_numericality_of :fortification
  validates_numericality_of :masters
  validates_numericality_of :grooms
  validates_numericality_of :pages
  validates_numericality_of :ladies
  validates_numericality_of :guards
end
